#include <windows.h>

BOOL APIENTRY DllMain( HMODULE hModule,
                       DWORD  ul_reason_for_call,
                       LPVOID lpReserved
					 )
{
	switch (ul_reason_for_call)
	{
	case DLL_PROCESS_ATTACH:
	case DLL_THREAD_ATTACH:
	case DLL_THREAD_DETACH:
	case DLL_PROCESS_DETACH:
		break;
	}
	return TRUE;
}

typedef int (*OpFunc)(int,int);

__declspec(dllexport)
int suma (int x, int y)
{
	return x  + y;
}

__declspec (dllexport)
int makeop (OpFunc op, int x, int y)
{
	return (* op) (x, y);
}
